The following are the donor selection criteria for SLT: (1) Age < 50 years old, BMI < 26 kg/m2, ICU length of stay < 5 d; (2) Hepatic steatosis ratio < 10%, AST/ALT level < 3 times the upper limit of normal, TBIL level < 2 times the upper limit of normal; (3) Serum sodium level < 160 mmol/L, cold ischemia time < 10 h. Here, GPT is linked to fatty liver disease.